Arocatus Melanocephalus
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Arocatus Melanocephalus
''Arocatus melanocephalus'', the elm seed bug, is a true bug in the family Lygaeidae. The species was initially described by Johan Christian Fabricius in 1798, and Maximilian Spinola designated it to be the type species of the genus ''Arocatus'' in 1837. This bug is native to Europe but has been introduced to North America. Taxonomic history The Danish zoologist Johan Christian Fabricius named this species in 1798, placing it in the genus ''Lygaeus''. When the Italian entomologist Maximilian Spinola named the genus ''Arocatus'' in 1837, he designated Fabricius's ''Lygaeus melanocephalus'' as its type species. In 1999, Jean Péricart designated a female lectotype in the University of Copenhagen Zoological Museum. ''Lygaeus pruinosus'', a nomen nudum referring to this species, was named by Eduard Friedrich Eversmann in 1837. Vasily Evgrafovich Yakovlev synonymized this name with ''A. melanocephalus'' in 1875. The French entomologist Charles Jean-Baptiste Amyot referred to this sp ...
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Johan Christian Fabricius
Johan Christian Fabricius (7 January 1745 – 3 March 1808) was a Danish zoologist, specialising in "Insecta", which at that time included all arthropods: insects, arachnids, crustaceans and others. He was a student of Carl Linnaeus, and is considered one of the most important entomologists of the 18th century, having named nearly 10,000 species of animals, and established the basis for the modern insect classification. Biography Johan Christian Fabricius was born on 7 January 1745 at Tønder in the Duchy of Schleswig, where his father was a doctor. He studied at the gymnasium at Altona and entered the University of Copenhagen in 1762. Later the same year he travelled together with his friend and relative Johan Zoëga to Uppsala, where he studied under Carl Linnaeus for two years. On his return, he started work on his , which was finally published in 1775. Throughout this time, he remained dependent on subsidies from his father, who worked as a consultant at Frederiks Hospita ...
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Antonio Garbiglietti
Antonio Garbiglietti (30 November 1807, Biella – 24 January 1887, Turin) was an Italian entomologist who specialised in Heteroptera. He wrote (1869). Catalogus methodicus et synonymicus et hemipterorum eteropterorum (Rhyngotha Fabr.) Italiae indigenarum. Accedit descriptio aliquot specierum vel minus vel nondum cognitarum. ''Bull. Soc. Entomol. Ital.'' 1: 41-52, 105-124, 181-198, 271-281. Garbiglietti was a physician. His collection is held by the Dipartimento Biologia Animale, Università di Torino-Turin Museum of Natural History The Turin Museum of Natural History (Italian: ''Museo Regionale di Scienze Naturali di Torino'' or MRSN) was established in 1978 to house the natural history collections of the University of Turin and other collections of natural history, origin .... References Schuh R. T., and Slater J. A. ''True bugs of the world (Hemiptera: Heteroptera). Classification and natural history''. 1995. Cornell University Press Ithaca. {{DEFAULTSORT:Garbiglietti, An ...
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Almond
The almond (''Prunus amygdalus'', syn. ''Prunus dulcis'') is a species of tree native to Iran and surrounding countries, including the Levant. The almond is also the name of the edible and widely cultivated seed of this tree. Within the genus ''Prunus'', it is classified with the peach in the subgenus ''Amygdalus'', distinguished from the other subgenera by corrugations on the shell (endocarp) surrounding the seed. The fruit of the almond is a drupe, consisting of an outer hull and a hard shell with the seed, which is not a true nut. ''Shelling'' almonds refers to removing the shell to reveal the seed. Almonds are sold shelled or unshelled. Blanched almonds are shelled almonds that have been treated with hot water to soften the seedcoat, which is then removed to reveal the white embryo. Once almonds are cleaned and processed, they can be stored over time. Almonds are used in many food cuisines, often featuring prominently in desserts, such as marzipan. The almond tree p ...
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Alnus
Alders are trees comprising the genus ''Alnus'' in the birch family Betulaceae. The genus comprises about 35 species of monoecious trees and shrubs, a few reaching a large size, distributed throughout the north temperate zone with a few species extending into Central America, as well as the northern and southern Andes. Description With a few exceptions, alders are deciduous, and the leaves are alternate, simple, and serrated. The flowers are catkins with elongate male catkins on the same plant as shorter female catkins, often before leaves appear; they are mainly wind-pollinated, but also visited by bees to a small extent. These trees differ from the birches (''Betula'', another genus in the family) in that the female catkins are woody and do not disintegrate at maturity, opening to release the seeds in a similar manner to many conifer cones. The largest species are red alder (''A. rubra'') on the west coast of North America, and black alder (''A. glutinosa''), native to ...
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Quercus
An oak is a tree or shrub in the genus ''Quercus'' (; Latin "oak tree") of the beech family, Fagaceae. There are approximately 500 extant species of oaks. The common name "oak" also appears in the names of species in related genera, notably '' Lithocarpus'' (stone oaks), as well as in those of unrelated species such as ''Grevillea robusta'' (silky oaks) and the Casuarinaceae (she-oaks). The genus ''Quercus'' is native to the Northern Hemisphere, and includes deciduous and evergreen species extending from cool temperate to tropical latitudes in the Americas, Asia, Europe, and North Africa. North America has the largest number of oak species, with approximately 160 species in Mexico of which 109 are endemic and about 90 in the United States. The second greatest area of oak diversity is China, with approximately 100 species. Description Oaks have spirally arranged leaves, with lobate margins in many species; some have serrated leaves or entire leaves with smooth margins. ...
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Populus
''Populus'' is a genus of 25–30 species of deciduous flowering plants in the family Salicaceae, native to most of the Northern Hemisphere. English names variously applied to different species include poplar (), aspen, and cottonwood. The western balsam poplar ('' P. trichocarpa'') was the first tree to have its full DNA code determined by DNA sequencing, in 2006. Description The genus has a large genetic diversity, and can grow from tall, with trunks up to in diameter. The bark on young trees is smooth, white to greenish or dark gray, and often has conspicuous lenticels; on old trees, it remains smooth in some species, but becomes rough and deeply fissured in others. The shoots are stout, with (unlike in the related willows) the terminal bud present. The leaves are spirally arranged, and vary in shape from triangular to circular or (rarely) lobed, and with a long petiole; in species in the sections ''Populus'' and ''Aigeiros'', the petioles are laterally flattened, s ...
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Platanus Orientalis
''Platanus orientalis'', the Old World sycamore or Oriental plane, is a large, deciduous tree of the Platanaceae family, growing to or more, and known for its longevity and spreading crown. In autumn its deep green leaves may change to blood red, amber, and yellow. Etymology The species' name means 'eastern'. (In comparison, the 'western' plane (or American sycamore) is named ''Platanus occidentalis''). The eastern plane's original distribution was eastward from the Balkans. The tree was called ''platane'' in ancient Greek history and literature and by related names in continental Europe. Equally well known in Asia from Anatolia to India and usually called ''chinar'' or ''chenar''. Range The native range is Eurasia from the Balkans to at least as far east as Iran. Some accounts extend its native range to Iberia in the west, and to the Himalayas in the east. As it has been known in cultivation from early times in much of this region it can be difficult to determine if it is truly ...
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Ulmus
Elms are deciduous and semi-deciduous trees comprising the flowering plant genus ''Ulmus'' in the plant family Ulmaceae. They are distributed over most of the Northern Hemisphere, inhabiting the temperate and tropical-montane regions of North America and Eurasia, presently ranging southward in the Middle East to Lebanon and Israel,Flora of Israel OnlineUlmus minor Mill. , Flora of Israel Online accessdate: July 28, 2020 and across the Equator in the Far East into Indonesia.Fu, L., Xin, Y. & Whittemore, A. (2002). Ulmaceae, in Wu, Z. & Raven, P. (eds) Flora of China'', Vol. 5 (Ulmaceae through Basellaceae). Science Press, Beijing, and Missouri Botanical Garden Press, St. Louis, US. Elms are components of many kinds of natural forests. Moreover, during the 19th and early 20th centuries, many species and cultivars were also planted as ornamental street, garden, and park trees in Europe, North America, and parts of the Southern Hemisphere, notably Australasia. Some individual ...
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Lygaeinae
Lygaeinae is a subfamily of ground bugs in the insect family Lygaeidae. Genera Genera within this subfamily include: : '' Achlyosomus'' Slater Alex, 1992 : '' Acrobrachys'' Horvath, 1914 : '' Acroleucus'' Stal, 1874 : '' Aethalotus'' Stal, 1874 : '' Afraethalotus'' Scudder, 1963 : '' Anochrostomus'' Slater Alex, 1992 : '' Apterola'' Mulsant & Rey, 1866 : '' Arocatus'' Spinola, 1837 : '' Aspilocoryphus'' Stal, 1874 : '' Aspilogeton'' Breddin, 1901 : '' Astacops'' Boisduval, 1835 : '' Aulacopeltus'' Stal, 1868 : '' Biblochrimnus'' Brailovsky, 1982 : '' Caenocoris'' Fieber, 1860 : '' Cosmopleurus'' Stal, 1872 : '' Craspeduchus'' Stal, 1874 : '' Dalmochrimnus'' Brailovsky, 1982 : '' Ektyphonotus'' Slater Alex, 1992 : '' Emphanisis'' China, 1925 : '' Gondarius'' Stys, 1972 : '' Graptostethus'' Stal, 1868 : '' Hadrosomus'' Slater Alex, 1992 : '' Haematorrhytus'' Stal, 1874 : '' Haemobaphus'' Stal, 1874 : '' Hormopleurus'' Horvath, 1884 : '' Horvathiolus'' Josifov, 1965 : '' Karachicori ...
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Digoxin
Digoxin (better known as Digitalis), sold under the brand name Lanoxin among others, is a medication used to treat various heart conditions. Most frequently it is used for atrial fibrillation, atrial flutter, and heart failure. Digoxin is one of the oldest medications used in the field of cardiology. It works by increasing myocardial contractility, increasing stroke volume and blood pressure, reducing heart rate, and somewhat extending the time frame of the contraction. Digoxin is taken by mouth or by injection into a vein. Digoxin has a half life of approximately 36 hours given at average doses in patients with normal renal function. It is excreted mostly unchanged in the urine. Common side effects include breast enlargement with other side effects generally due to an excessive dose. These side effects may include loss of appetite, nausea, trouble seeing, confusion, and an irregular heartbeat. Greater care is required in older people and those with poor kidney function. It ...
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Ouabain
Ouabain or (from Somali ''waabaayo'', "arrow poison" through French ''ouabaïo'') also known as g-strophanthin, is a plant derived toxic substance that was traditionally used as an arrow poison in eastern Africa for both hunting and warfare. Ouabain is a cardiac glycoside and in lower doses, can be used medically to treat hypotension and some arrhythmias. It acts by inhibiting the Na/K-ATPase, also known as the sodium-potassium ion pump. However, adaptations to the alpha-subunit of the Na+/K+-ATPase via amino acid substitutions, have been observed in certain species, namely some herbivore- insect species, that have resulted in toxin resistance. It is classified as an extremely hazardous substance in the United States as defined in Section 302 of the U.S. Emergency Planning and Community Right-to-Know Act (42 U.S.C. 11002), and is subject to strict reporting requirements by facilities which produce, store, or use it in significant quantities. Sources Ouabain can be found in ...
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Cardenolides
A cardenolide is a type of steroid. Many plants contain derivatives, collectively known as cardenolides, including many in the form of cardenolide glycosides (cardenolides that contain structural groups derived from sugars). Cardenolide glycosides are often toxic; specifically, they are heart-arresting. Cardenolides are toxic to animals through inhibition of the enzyme Na+/K+‐ATPase, which is responsible for maintaining the sodium and potassium ion gradients across the cell membranes. Etymology The term derives from ''card-'' "heart" (from Greek καρδία ''kardiā'') and the suffix ''-enolide'', referring to the lactone ring at C17. Cardenolides are a class of steroids (or aglycones if viewed as cardiac glycoside constituents), and cardenolides are a subtype of this class (see MeSH D codes list). Structure Cardenolides are C(23)-steroids with methyl groups at C-10 and C-13 and a five-membered lactone (specifically a butenolide) at C-17. They are aglycone constituents of ...
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